4C3 



NATURE 



[April 17, 19 19 



the author had examined 2789 flowers for the corolla, 

 and found from five lobes in 0-33 per cent, to a, maxi- 

 mum of eight lobes in 40 per cent., declining to a 

 percentage of 0-04 for those with twelve lobes. Simi- 

 larly, the teeth of the calyx were examined in 3560 

 flowers at the same time, and showed with four teeth 

 2-5;6 per cent., with five and six lobes the maximum 

 with respective percentages of 46-26 and 47-81, the 

 last being of eight teeth with 022 per cent. 



Aristotelian Society, April 7. — Prof. Wildon Carr in 

 the chair. — A. F. Sliand : Emotion and value. In- 

 trinsic value, whether in external things or in the 

 constituents of the mind, is not a simple, statical 

 quality that can be found in some things, but about 

 which nothing further can be said. It is essentially 

 dynamical. It presupposes always something on 

 which it can act, with which it has affinity, and the 

 power of acting on this thing in certain ways. Such 

 value cannot, therefore, be wholly contained in or 

 confined to the thing which possesses it; for a condi- 

 tion of intrinsic value is the power of propagating 

 the same kind of value in the other thing with which 

 it has affinity. But this power, though a part and 

 condition of this value, does not sum it up. For 

 things would not have power to produce excellent 

 effects unless there were something excellent in their 

 own nature. Fear, anger, and hate have one kind of 

 effect; joy, admiration, and love have an opposite 

 kind. The power of each depends on its own 

 nature. The power which is a condition of intrinsic 

 value is therefore also conditioned by it. 



Zoological Society, Aoril 8. — Dr. S. F. Harmer, vice- 

 president, in the chair.— Dr. F. E. Beddard : Three 

 foetal sperm whales. Attention was directed to the 

 smallest foetus exhibited, which measured 45 in. in 

 length.^ — L. T. Hogben : The progressive reduction of 

 the jucfal in the Mammalia.— G. A. Boulenger : Two 

 new lizards and a new frog from the Andes of 

 Colombia. — R. I. Pococlt : Structural characters by 

 which the genera of Felidse may be distinguished from 

 each other. Special attention was directed to the 

 formation of the feet in the cheetah (Acinonyx), to 

 the modifications of the hyoidean apparatus in the 

 lions, tigers, leopards, and jaguars (Panthera), and 

 to the position of the partition in the auditory bulla 

 in other s^enera. 



BOOKS RECEIVED. 



Sands : Considered Geologically and Industrially 

 under War Conditions. By Prof. P. G. H. Boswell. 

 Pp. 38. (Liverpool : At the University Press.) is.' 

 net. 



Organic Chemistry; or. Chemistry of the Carbon 

 Compounds. By V. von Richter. Edited by Profs. 

 R. Anschutz and G. Schroeter. Vol. i. : Chemistry 

 of the Aliphatic Series. Translated and revised by 

 Dr. P. E. Spielman. Second (revised) edition. 

 Pp. xvi + 719. (London: Kegan Paul and Co., Ltd.) 

 215. net. 



Food (War) Committee, Royal Society. Report on 

 the Composition of Potatoes Grown in the United 

 Kingdom. Pp. 31. (London : Harrison and Sons.) 



2S. 



Yorkshire Type Ammonites. Edited by S. S. 

 Buckman. Part xviii. (London : W. Wesley and 

 Son.) 



A Summary of My Theory of the Sun. By Dr. A. 

 Brester. Pp. 62. (The Hague : W. P. Stockum and 

 Son.) 



Carburettors, Vaporisers, and Distributing Valves 

 Used in Internal-Combustion Engines. By E. Butler. 

 Second edition. Pp. viii4-288. (London: C. Griflfin 

 and Co., Ltd.) 125. 6d. net. 

 NO. 2581, VOL. 103] 



The Mica Miner's and Prospector's Guide. By 

 A. A. C. Dickson. Pp. viii+50. (London : E. and 



F. N. Spon, Ltd.) 45. 6d. net'. 



Birds Beneficial to Agriculture. By F. W. Frohawk. 

 Pp. vi+47 + 22 plates. Economic Series, No. 9, 

 British Museum (Natural History). (London : British 

 Museum, Natural History.) 2s. 



Report on Cetacea Stranded on the British Coasts 

 during 1918. By Dr. S. F. Harmer. Pp. 24. 

 (London : British Museum, Natural History.) 3s. 6d. 



T.N.T. Trinitrotoluenes and Mono- and Dinitro- 

 toluenes : Their Manufacture and Properties. By 



G. C. Smith. Pp. vii+133. (London: Constable 

 and Co., Ltd.) 85. 6d. net. 



The Life of Matter : An Inquiry and Adventure. 

 Edited by A. Turnbull. Pp. xviii + 324+ iv plates. 

 (London : Williams and Norgate.) 7s. 6d. net. 



Calcul des Valeurs Absolues. By D. Riabouchin- 

 sky. Pp. 113. (Copenhague.) 



DIARY OF SOCIETIES. 



THURSDAY, April 24. 



Institution of Ei.ectricai, Engineers, at 6. — Major A. C. Fuller: 



The Fullerphone, and its Application to Military and Civil Telegraphy. 



TUESDAY, April 29. 



Zoological Society, at 5.30.— Dr. W. T. Caiman : Marine Boring 



Animals.— Noel Tayler : A Unique Case of Asymmetrical Duplicity in 



the Chick.— Geo. Jennison : .\ Chimpanzee in the Open Air in England. 



CONTENTS. 



Gyroscopics. By Sir G. Greenhill, F.R.S. . . . 

 A Physiologist's Contribution to War Surgery. 



By H. H. D 



Introductory Meteorology. By Sir Napier Shaw, 



F.R.S 



Our Bookshelf . 



Letters to the Editor: — 



The Finger-print System in the Far East.— Cav. 

 Filippo de Filippi, K.C.LE 



Supposed Effect of Sunlight on Water-drops. — Prof. 



G. H. Bryan, F.R.S 



A South African Pioneer. (Illustrated.) By Sir 



H. H. Johnston, G.C.M.G./K.C.B. 

 Part-time Education in the United States .... 



The Future of Scientific Industries 



Dr. Henry Wilde, F.R.S. By W. W. H. G. . . . 



Notes . . 



Our Astronomical Column : — 



Observed Changes on Jupiter 



Drawings of Mars 



The Gegenschein or Counlerglow 



Tycho Brahe's Original Observations 



The Development of Airship Construction . . 



Experiments in Psychical Research 



Meeting of the British Medical Association . . . . 



Agricultursl Research in Madras 



Uses of Invisible Light in Warfare 



University and Educational Intelligence 



Societies and Academies 



Books Received 



Diary of Societies 



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